dr. qanati, how will you handle this matter? i am not as professional as the doctor in human resources issues, but at least this hospital , where there are 100 of us, be nurses, i will answer you verbally . look, many nurses migrate to the cities because of the income they have and the expenses in tehran, where they go to their own cities. now in the cities , there is a greater tendency for friends to go near their families or where the rent is lower. and may you live, financing these is one of them issues that we found our own way with a company. that you implemented planning law companies, mr. doctor, anyway, the costs of tehran are very high , hasta hosseini, you yourself live in tehran, after all, the costs are high, and this is the most important challenge of the entire human resources of the health system in one word. in summary, unfortunately, income means that if we increase the income level of our friends to an acceptable level, sustainability and, as the famous saying goes, finding manpower will be done easily, mr. dr.